Ключевые слова: angle, answer, art, background, blackboard, books, cartoon, chalk, class, classroom, cover, decorative, design, desk, difficult, education, flyer, geometry, illustration, interior, knowledge, layout, lesson, measures, mind, pen, pencil, poster, print, pupil, room, school, science, smart, solution, student, study, sunlight, symbol, task, teacher, template, title, triangle, typography, uniform, wallpaper, work,